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New Findings From Explainable SYM‐H Forecasting Using Gradient Boosting Machines
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2022
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Source: Space Weather, 20(8)
[PDF-4.12 MB]
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Journal Title:Space Weather
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Description:In this work, we develop gradient boosting machines (GBMs) for forecasting the SYM-H index multiple hours ahead using different combinations of solar wind and interplanetary magnetic field (IMF) parameters, derived parameters, and past SYM-H values. Using Shapley Additive Explanation values to quantify the contributions from each input to predictions of the SYM-H index from GBMs, we show that our predictions are consistent with physical understanding while also providing insight into the complex relationship between the solar wind and Earth's ring current. In particular, we found that feature contributions vary depending on the storm phase. We also perform a direct comparison between GBMs and neural networks
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Source:Space Weather, 20(8)
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DOI:
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ISSN:1542-7390;1542-7390;
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Rights Information:CC BY
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Compliance:Library
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